diff --git a/FileRepository/Repositories/DiskRepository.cs b/FileRepository/Repositories/DiskRepository.cs
new file mode 100644
index 0000000..a849667
--- /dev/null
+++ b/FileRepository/Repositories/DiskRepository.cs
@@ -0,0 +1,42 @@
+using FileRepository.Models;
+using Microsoft.Extensions.Configuration;
+using System;
+using System.Threading.Tasks;
+
+namespace FileRepository.Repositories
+{
+    /// <summary>
+    /// The repository implementation for Disk.
+    /// </summary>
+    internal class DiskRepository : IFileRepository
+    {
+        /// <summary>
+        /// Initialises a new instance of the <see cref="DiskRepository"/> class with configuration.
+        /// </summary>
+        /// <param name="config">The configuration to initialise the repository with.</param>
+        internal DiskRepository(IConfiguration config)
+        {
+            //this.host = config["DiskRepository:host"];
+        }
+
+        public async Task<string> CreateFileAsync(RepoFile file)
+        {
+            throw new NotImplementedException();
+        }
+
+        public async Task<bool> DeleteFileAsync(string filename)
+        {
+            throw new NotImplementedException();
+        }
+
+        public async Task<RepoFile> ReadFileAsync(string filename)
+        {
+            throw new NotImplementedException();
+        }
+
+        public async Task<bool> UpdateFileAsync(RepoFile file)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}
diff --git a/FileRepository/Repositories/MongoDbRepository.cs b/FileRepository/Repositories/MongoDbRepository.cs
new file mode 100644
index 0000000..8302654
--- /dev/null
+++ b/FileRepository/Repositories/MongoDbRepository.cs
@@ -0,0 +1,42 @@
+using FileRepository.Models;
+using Microsoft.Extensions.Configuration;
+using System;
+using System.Threading.Tasks;
+
+namespace FileRepository.Repositories
+{
+    /// <summary>
+    /// The repository implementation for MongoDb.
+    /// </summary>
+    internal class MongoDbRepository : IFileRepository
+    {
+        /// <summary>
+        /// Initialises a new instance of the <see cref="MongoDbRepository"/> class with configuration.
+        /// </summary>
+        /// <param name="config">The configuration to initialise the repository with.</param>
+        internal MongoDbRepository(IConfiguration config)
+        {
+            //this.host = config["MongoDbRepository:host"];
+        }
+
+        public async Task<string> CreateFileAsync(RepoFile file)
+        {
+            throw new NotImplementedException();
+        }
+
+        public async Task<bool> DeleteFileAsync(string filename)
+        {
+            throw new NotImplementedException();
+        }
+
+        public async Task<RepoFile> ReadFileAsync(string filename)
+        {
+            throw new NotImplementedException();
+        }
+
+        public async Task<bool> UpdateFileAsync(RepoFile file)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}
diff --git a/FileRepository/Repositories/S3Repository.cs b/FileRepository/Repositories/S3Repository.cs
new file mode 100644
index 0000000..d0f401c
--- /dev/null
+++ b/FileRepository/Repositories/S3Repository.cs
@@ -0,0 +1,42 @@
+using FileRepository.Models;
+using Microsoft.Extensions.Configuration;
+using System;
+using System.Threading.Tasks;
+
+namespace FileRepository.Repositories
+{
+    /// <summary>
+    /// The repository implementation for S3.
+    /// </summary>
+    internal class S3Repository : IFileRepository
+    {
+        /// <summary>
+        /// Initialises a new instance of the <see cref="S3Repository"/> class with configuration.
+        /// </summary>
+        /// <param name="config">The configuration to initialise the repository with.</param>
+        internal S3Repository(IConfiguration config)
+        {
+            //this.host = config["S3Repository:host"];
+        }
+
+        public async Task<string> CreateFileAsync(RepoFile file)
+        {
+            throw new NotImplementedException();
+        }
+
+        public async Task<bool> DeleteFileAsync(string filename)
+        {
+            throw new NotImplementedException();
+        }
+
+        public async Task<RepoFile> ReadFileAsync(string filename)
+        {
+            throw new NotImplementedException();
+        }
+
+        public async Task<bool> UpdateFileAsync(RepoFile file)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}
diff --git a/FileRepository/Repositories/SqlRepository.cs b/FileRepository/Repositories/SqlRepository.cs
new file mode 100644
index 0000000..a2d2894
--- /dev/null
+++ b/FileRepository/Repositories/SqlRepository.cs
@@ -0,0 +1,42 @@
+using FileRepository.Models;
+using Microsoft.Extensions.Configuration;
+using System;
+using System.Threading.Tasks;
+
+namespace FileRepository.Repositories
+{
+    /// <summary>
+    /// The repository implementation for SQL.
+    /// </summary>
+    internal class SqlRepository : IFileRepository
+    {
+        /// <summary>
+        /// Initialises a new instance of the <see cref="SqlRepository"/> class with configuration.
+        /// </summary>
+        /// <param name="config">The configuration to initialise the repository with.</param>
+        internal SqlRepository(IConfiguration config)
+        {
+            //this.host = config["SqlRepository:host"];
+        }
+
+        public async Task<string> CreateFileAsync(RepoFile file)
+        {
+            throw new NotImplementedException();
+        }
+
+        public async Task<bool> DeleteFileAsync(string filename)
+        {
+            throw new NotImplementedException();
+        }
+
+        public async Task<RepoFile> ReadFileAsync(string filename)
+        {
+            throw new NotImplementedException();
+        }
+
+        public async Task<bool> UpdateFileAsync(RepoFile file)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}